My plan for remoting a Flex-5000A is to handle the video with Remote Desktop and use the RRC-1258MkIIs to provide stereo Rx and (mono) Tx audio, plus a CAT serial link.
The radio's stereo Rx audio is intended to drive PC speakers, and the remote audio will use the stereo miniature phone output to do that.
On the radio side, it looks like my best option is to remove R82, R137, R102, R103 to raise the "speaker" input resistance to about 1K, instead of the original 50 ohms. Is there an easier way?
Clyde, K2UE